I know that this doesn't have direct impact on the shortwave world but as communications enthusiasts some here may find this interesting.
WBT radio conducted an unusual digital audio test last weekend. They used their entire channel for a digital COFDM digital transmission to obtain data on system performance. The modulation used was the in band type of IBOC that has been used for digital audio broadcasting in the Us. The difference was that the analog transmission was shut off and the entire audio bandwidth was dedicated to the digital signal compared to the hybrid practice being used now of analog on the primary channel and digital on the first adjacent. In the shortwave world experiments are being done with DRM as most of you know. Iboc is a technological relative of DRM. See the article referenced below by clicking on the link and play an example of the analog and digital tests. Enjoy. <http://radioinsight.com/blog/headlines/84743/is-there-hope-for-a-digital-am -band/> http://radioinsight.com/blog/headlines/84743/is-there-hope-for-a-digital-am- band/ Dave Marthouse [email protected]
_______________________________________________ Swlfest mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/swlfest To unsubscribe: Send an E-mail to [email protected]?subject=unsubscribe, or visit the URL shown above. For more information on the Fest, visit: http://www.swlfest.com http://swlfest.blogspot.com
